Radiative lifetimes of highly excited even-parity levels in Gd I and Gd II

Details Radiative lifetimes of highly excited even-parity levels in Gd I and Gd II Radiative lifetimes of highly excited even-parity levels in Gd I and Gd II

Dec 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011mnras.418..998f&link_type=abstract

Monthly Notices of the Royal Astronomical Society, Volume 418, Issue 2, pp. 998-1003.

Astronomy and Astrophysics

Astronomy

Atomic Data, Atomic Processes, Methods: Laboratory, Techniques: Spectroscopic

Scientific paper

Radiative lifetimes of 94 high-lying even-parity levels from 29 717.231 to 41 692.155 cm-1 of Gd I and 10 high-lying even-parity levels from 38 057.954 to 49 291.082 cm-1 of Gd II, have been measured using time-resolved laser-induced fluorescence method. The lifetime values range from 7.1 to 220 ns for Gd I and from 5.2 to 47.4 ns for Gd II. Most results reported here lie within the uncertainty of ±5 per cent. Free neutral and singly ionized gadolinium atoms were generated by laser ablation. The second harmonic of different dye lasers was employed as the tunable UV exciting source (242-337 nm) to excite the investigated levels. A good agreement between our results and the previous ones was achieved.

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